package L_5_7;

public class keyBoard implements Iusb {

    @Override
    public void deviceOpen () {
        System.out.println ("打开键盘");
    }

    @Override
    public void deviceClose () {
        System.out.println ("关闭键盘");
    }

    public void input () {
        System.out.println ("输入文字");
    }
}
